/*
 * Copyright 2019 WeBank
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.webank.wedatasphere.linkis.ujes.jdbc.hook.impl

import com.webank.wedatasphere.linkis.ujes.jdbc.hook.JDBCDriverPreExecutionHook

class TableauPreExecutionHook extends JDBCDriverPreExecutionHook{
  override def callPreExecutionHook(sql: String): String = {
    if (sql.contains("LOCAL TEMPORARY")){
      sql.replace("LOCAL TEMPORARY", "").replace("ON COMMIT PRESERVE ROWS", "")
    } else if (sql.contains("GROUP BY 2")){
      sql.replace("GROUP BY 2","")
    } else if (sql.contains("`#")) {
      sql.replace("`#", "`")
    } else if (sql.startsWith("INSERT")) {
      sql.replace("(COL)", "").replaceAll("VALUES (.*)", "VALUES (1)")
    } else if (sql.contains("CREATE INDEX")) {
      "select 1"
    } else{
      sql.replace("TOP", "").replace("CHECKTOP","")
    }
  }
}
